At a brick laying contest, each layer of bricks is expected to be of an inch tall. Three contestants recorded the fraction of layers of brick they placed and the time it took them to place the bricks in the table below.

First, determine the number of inches each contestant made by multiplying the fraction of layers by the height of each layer.

Next, determine what fraction of an hour each contestant took to make their fraction of layers by writing each number of minutes as a fraction of 60 minutes.

Last, determine each contestant’s unit rate in inches per hour.

So, Zeke's unit rate was  of an inch per hour.

Melanie's unit rate was  of an inch per hour.

To find out how much greater Zeke's unit rate was than Xavier's unit rate, subtract Xavier's unit rate from Zeke's unit rate.

Therefore, Zeke's unit rate was  of an inch per hour greater than Xavier's unit rate.

Step-by-step explanation:

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

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